Both our labs do it. They open drawers, get in the shower stall, pull open cabinet doors and dig through stuff to get it from the back shelf and tonight one of them got in the tub and jumped to a soap holder about 4-5 feet up. (Found the holder in the tub sans soap.) The BLF has a fondness for girly lavender soap, very expensive, smelly and emollient. The Chocolate male goes for "Irish Spring". He ate an entire bar, got colitis and cost us 400$ at the vet just to prove he wasn't obstructed.
I bagged the bars once and got even more expensive lotion/soap only to find it chewed open.
Wonder if they still make Borax powder. Even a lab wouldn't eat that. (I don't think.)
This is getting annoying.